Anyone who has seen fitness and life coach Jillian Michaels on The Biggest Loser and Losing It with Jillian knows she has the expertise and determination to help overweight people reach new levels of fitness and health. Using her own difficult life experiences, Jillian is able to help others look below the surface to the roots of their own unhealthy lifestyles. As a child, she suffered from night terrors, then her parents divorced when she was 12. She reacted to her anger and unhappiness by comforting herself with food. By age 17 she weighed 175 pounds — too much weight for her small 5'2" frame. To get Jillian involved in physical activity, her mother signed her up for a martial arts class. It was the right choice. Jillian loved the physical and spiritual aspects of martial arts practice, and this training pointed the way to what ultimately became her career.

It's no wonder Jillian is concerned about America's obesity problem — especially in children. To counter it, she and a business partner put together a Wii game, “Jillian Michaels' Fitness Ultimatum.” “If you turn exercise into a game, it's much easier to get kids to join in,” she says.

For adults, Jillian is concerned with unhealthy body images put forward by the fashion industry and media. She says, “Educating women on the importance of a healthy diet and exercise program is essential, but getting them to realize that women are supposed to have curves is equally important.” She is working on a new book, which is designed to help people live a healthy lifestyle, realize their true potential, and find happiness in just being themselves.

Since good health also includes good oral health, here's a sampling of what Jillian discussed about healthy habits in her interview with Dear Doctor magazine.

How can parents encourage their children to have healthy habits? Jillian says it starts with parents setting a good example. Parents can persuade children to get exercise by going outside to play with them. Gardening together and serving kids home-grown vegetables is a good way to encourage healthy eating.

What is her dental care routine? Jillian brushes her teeth two or three times a day with an electric toothbrush and she flosses daily. She never leaves home without toothpaste, an electric travel toothbrush, and floss as well as some sort of lip gloss. She sees her dentist, whom she calls “amazing,” at least twice a year for cleanings.

How does she guard against damage from martial arts? Jillian broke her two front teeth as a child and had them repaired with crowns. Now she wears a mouthguard when doing vigorous exercise.

What other cosmetic dental procedures has she had? She also had braces and has had her teeth whitened.